Food Microbiology

Mon, 01/27/2020 - 03:23
Author(s): Tamirat Tefera Temesgen, Alessandra Barlaam, Kristoffer R. Tysnes, Lucy J. RobertsonAbstractThe potential public health impact of foodborne parasites transmitted via contaminated fresh produces indicates the necessity for robust and reliable laboratory methods for their detection and identification on this infection vehicle. Standardization of methods for detection of common FBP in...
Fri, 01/24/2020 - 03:21
Author(s): Yi Li, Leyi Zhang, Yuqin Hu, Chengji Hong, Airong Xie, Yuejin Wu, Zhihui, Shangguan, Lingling Mei, Biao Zhou, Yanjun Zhang, Lei FangAbstractPathogenic Cronobacter species are responsible for life-threatening illness in neonates. A ten-year comprehensive survey was conducted to examine the population structure and antimicrobial resistant patterns of Cronobacter isolates from food (n=78...
Wed, 01/22/2020 - 03:22
Author(s): Christina Charmpi, David Van der Veken, Emiel Van Reckem, Luc De Vuyst, Frédéric LeroyAbstractAcidification level and temperature modulate the beneficial consortia of lactic acid bacteria (LAB) and coagulase-negative staphylococci (CNS) during meat fermentation. Less is known about the impact of other factors, such as raw meat quality and salting. These could for instance affect the...
Tue, 01/21/2020 - 03:21
Author(s): Virginia Filipello, Lapo Mughini-Gras, Silvia Gallina, Nicoletta Vitale, Alessandro Mannelli, Mirella Pontello, Lucia Decastelli, Marc W. Allard, Eric W. Brown, Sara LomonacoAbstractListeriosis is a foodborne illness characterized by a relatively low morbidity, but a large disease burden due to the severity of clinical manifestations and the high case fatality rate. Increased...
Sun, 01/12/2020 - 03:21
Author(s): Francesca Fanelli, Daniele Chieffi, Angela Di Pinto, Anna Mottola, Federico Baruzzi, Vincenzina FuscoAbstractIn this study the phenotypic and genomic characterization of two Arcobacter butzleri (Ab) strains (Ab 34_O and Ab 39_O) isolated from pre-cut ready-to-eat vegetables was performed. Results provided useful data about their taxonomy and their overall virulence potential with...
Sat, 01/11/2020 - 03:20
Author(s): Nânci Santos-Ferreira, João Rodrigo Mesquita, Enrique Rivadulla, Ângela S. Inácio, Paulo Martins da Costa, Jesus L. Romalde, Maria São José NascimentoAbstractHepatitis E virus (HEV) deriving from manure application runoffs and faecal waste spill over of swine and human origin bypass wastewater treatment plants and contaminate coastal waters. Shellfish bioaccumulate enteric viruses such...
Fri, 01/10/2020 - 03:21
Author(s): Chunling Zhang, Zhiyi Zhao, Gaoji Yang, Yiqi Shi, Yuyu Zhang, Xiaodong Xia, Chao ShiAbstractMicrobial contamination of sprouts occurs easily because of the pathogens present on and in the seeds and the optimal conditions for bacteria growth provided during the germination and sprouting processes. This study examined the effect of using slightly acidic electrolyzed water (SAEW), a ‘...
Wed, 01/08/2020 - 03:24
Author(s): Zhen Jia, Yanhong Liu, Chang-An Hwang, Lihan HuangAbstractClostridium perfringens is a strictly anaerobic pathogen that requires absence of oxygen for its growth in laboratory experiments, which is usually attained by using an anaerobic chamber or anaerobic jars. However, it has been demonstrated that C. perfringens may survive for short periods of times due to its adaptive response to...
Mon, 12/30/2019 - 03:23
Author(s): Caruso Marta, Normanno Giovanni, Miccolupo Angela, Capozzi Loredana, Bonerba Elisabetta, Difato Laura, Mottola Anna, Di Pinto Angela, Santagada Gianfranco, Parisi AntonioAbstractArcobacter butzleri is a zoonotic foodborne pathogen able to cause enteric and extraintestinal diseases. Its occurrence in foodstuff is well recognized worldwide but data on its presence in foods from Southern...
Thu, 12/26/2019 - 03:22
Author(s): Francisco López-Gálvez, Pilar Truchado, Juan A. Tudela, Maria I. Gil, Ana AllendeAbstractThe washing stage from a bell pepper commercial packinghouse was assessed to study some of the critical control points related to bacterial cross-contamination. The washing line comprised two overhead spray bars applications: a pre-wash step without peroxyacetic acid (PAA), and a wash step with PAA...
Thu, 12/26/2019 - 03:22
Author(s): Wenmeng He, Hau Yin ChungThis study aimed to explore the core functional microbiotas related to flavor compounds involving in a naturally fermented soybean curd (plain sufu). Properties such as physicochemical parameters, flavor compounds (17 free amino acids, 21 fatty acids, and 14 aroma volatiles) and microbiota profiles were investigated, and their correlations were explored at 8...
Sat, 12/14/2019 - 03:22
Author(s): Alonzo A. Gabriel, Mikaella Marie C. David, Maxine Sebastianne C. Elpa, Juan Carlos D. MichelenaAbstractThis study determined the efficacy of UV-C as a decontamination process against some foodborne bacteria in dried whole black peppercorns. Artificially-inoculated Salmonella enterica, Escherichia coli O157:H7, Listeria monocytogenes, Pseudomonas aeruginosa, and Staphylococcus aureus...
Thu, 12/12/2019 - 03:24
Author(s): Lin Chen, Xue Zhao, Ji'en Wu, Qin Liu, Xinyi Pang, Hongshun YangAbstractThe metabolic diversity of Escherichia coli strains (non-pathogenic E. coli ATCC 25922, and pathogenic E. coli O157:H7, O26:H11, O45:H2, O103:H11, O111, O121:H19, and O145) was tested using nuclear magnetic resonance. Based on two representative two-dimensional 1H-13C spectra, 38 metabolites were identified in E....
Thu, 12/12/2019 - 03:24
Author(s): Angela Ma, Heather Glassman, Linda ChuiAbstractThe purpose of this study was to identify Escherichia coli isolates obtained from patients experiencing acute gastroenteritis that possess the locus of heat resistance (LHR) and characterize their heat resistance upon exposure to temperatures of 60°C and 71°C. From a collection of 613 clinical E. coli strains, 3 heat resistant E. coli...
Thu, 12/05/2019 - 03:41
Author(s): Angela Assurian, Helen Murphy, Laura Ewing, Hediye Nese Cinar, Alexandre da Silva, Sonia AlmeriaAbstractOutbreaks and sporadic cases of Cyclospora cayetanensis have been linked to consumption of berries. The efficacy of the U.S. Food and Drug Administration (FDA) method for detection of C. cayetanensis was evaluated in fresh berries (blackberries, strawberries, blueberries and mixed...
Thu, 12/05/2019 - 03:41
Author(s): Yan Qi, Yingshu He, Larry R. Beuchat, Wei Zhang, Xiangyu DengAbstractThe common use of gloves in retail practices represents a potential route for cross contamination of foodborne pathogens in fresh-cut produce. Using fresh-cut cantaloupe as a food model, we investigated factors that may influence glove-mediated cross contamination by Listeria monocytogenes and developed mathematical...
Fri, 11/29/2019 - 03:18
Author(s): Kuan-Hung Lu, Yi-Jyun Sheen, Tsui-Ping Huang, Shu-Hui Kao, Chun-Lung Cheng, Cheng-An Hwang, Shiowshuh Sheen, Lihan Huang, Lee-Yan SheenAbstractCooked rice with pork floss (CRPF) wrapped in dried seaweed is one of the most popular ready-to-eat (RTE) foods in many Asian countries, particularly in Taiwan. The products are susceptible to Staphylococcus aureus contamination and temperature...
Wed, 11/27/2019 - 03:23
Author(s): Elisa Gayán, Elise Geens, Daniel Berdejo, Diego García-Gonzalo, Rafael Pagán, Abram Aertsen, Chris W. MichielsAbstractThe growing demand for minimally processed foods with clean labels has stimulated research into mild processing methods and natural antimicrobials to replace intensive heating and conventional preservatives, respectively. However, we have previously demonstrated that...
Wed, 11/27/2019 - 03:23
Author(s): Mathieu Gand, Wesley Mattheus, Nancy H.C. Roosens, Katelijne Dierick, Kathleen Marchal, Sigrid C.J. De Keersmaecker, Sophie BertrandAbstractSalmonella is a major pathogen having a public health and economic impact in both humans and animals. Six serotypes of the Salmonella genus are mentioned in the Belgian and European regulation as to be rapidly excluded from the food chain (EU...
Mon, 11/25/2019 - 03:23
Author(s): Yuanyuan Song, Xuetong FanAbstractIn the present study, we investigated whether cold plasma activation affected the efficacy of aerosolized hydrogen peroxide against S. Typhimurium and L. innocua. Stem scars and smooth surfaces of grape tomatoes, surfaces of Granny Smith apples and Romaine lettuce (both midrib and upper leaves) and cantaloupe rinds were inoculated with two-strain...
Mon, 11/25/2019 - 03:23
Author(s): Min-Jin Jeon, Jae-Won HaAbstractWe evaluated the bactericidal efficacy of the simultaneous application of ultraviolet-A (UV-A) irradiation and fumaric acid (FA) against Escherichia coli O157:H7, Salmonella enterica serovar Typhimurium, and Listeria monocytogenes in apple juice and as well as investigated the effects of this treatment on product quality. Further, we elucidated the...
Sun, 11/24/2019 - 03:37
Author(s): Francesco Fancello, Giacomo L. Petretto, Salvatore Marceddu, Tullio Venditti, Giorgio Pintore, Giacomo Zara, Ilaria Mannazzu, Marilena Budroni, Severino ZaraAbstractContamination by Listeria monocytogenes is a particularly challenging problem in the food industry due to the ability of the bacterium to develop under conditions normally used for food preservation. Here, we show that the...
Sat, 11/23/2019 - 03:22
Author(s): Luca Settanni, Pietro Barbaccia, Adriana Bonanno, Marialetizia Ponte, Rosalia Di Gerlando, Elena Franciosi, Antonino Di Grigoli, Raimondo GaglioAbstractThe present work was carried out to evaluate the microbiological and physicochemical composition of salamis produced with the meat of beef, horse, wild boar and pork. Salami productions occurred under controlled laboratory conditions to...
Sat, 11/23/2019 - 03:22
Author(s): Andrea R. McWhorter, Kapil K. ChousalkarAbstractSingle-aged caged layer hen flocks were monitored for Salmonella over the course of their lifetime. Chicks from both flocks were Salmonella negative at hatch and remained negative during rearing. Pullets were transported to production farms at 15 weeks of age. Pre-population dust swabs collected from both production sheds had a high...
Wed, 11/20/2019 - 03:38
Author(s): Alexander Gill, Tanis McMahon, Forest Dussault, Nicholas PetronellaAbstractWheat flour has recently been recognised as an exposure vehicle for the foodborne pathogen Shiga toxin-producing Escherichia coli (STEC). Wheat flour milled on two sequential production days in October 2016, and implicated in a Canada wide outbreak of STEC O121:H19, was analysed for the presence of STEC in...
Wed, 11/20/2019 - 03:38
Author(s): Laura Nyhan, Nicholas Johnson, Máire Begley, Padraic O’Leary, Michael CallananAbstractIndirect impedance has been used for the detection and enumeration of bacteria, however there is limited data regarding the ability of the method to measure growth and inhibition of microorganisms in food in response to preservatives. The aim of this study was to evaluate the suitability of the...
Wed, 11/20/2019 - 03:38
Author(s): Gabriella Mendes-Oliveira, Amanda J. Deering, M. Fernanda San Martin-Gonzalez, Osvaldo H. CampanellaAbstractAlthough due to their acidity some fruit juices are considered safe, several outbreaks have been reported. For processing fruit juices, microwave heating offers advantages such as shorter come-up time, faster and uniform heating, and energy efficiency. Thus, it could be a...
Sun, 11/17/2019 - 03:21
Author(s): J. Vazquez-Armenta F., A. Hernandez-Oñate M., A. Martinez-Tellez M., A. Lopez-Zavala A., A. Gonzalez-Aguilar G., M. Gutierrez-Pacheco M., F. Ayala-Zavala J.AbstractThe present study explored the effect of quercetin on the expression of virulence genes actA, inlA, inlC, and their regulatory components, sigB and prfA, in L. monocytogenes. Furthermore, the physicochemical changes on the...
Sat, 11/16/2019 - 03:22
Author(s): Kenneth F. Ballom, Hsieh-Chin Tsai, Mike Taylor, Juming Tang, Mei-Jun ZhuAbstractDry dairy powder is a commonly used ingredient for ready-to-eat foods. It has been implicated in multiple foodborne outbreaks. Listeria monocytogenes can survive in low moisture conditions for a long duration. However, there is no information on Listeria survival in dry milk powder during storage and...
Wed, 11/13/2019 - 03:22
Author(s): Alberto Alía, María J. Andrade, Juan J. Córdoba, Irene Martín, Alicia RodríguezAbstractListeria monocytogenes is an important foodborne pathogen, causative agent of listeriosis. The epidemiology and persistence of this bacterium in meat processing plants may be related to its serotype, so it is of utmost importance to carry out a correct differentiation of L. monocytogenes serotypes....
Thu, 11/07/2019 - 03:23
Author(s): Samantha Bolten, Ganyu Gu, Yaguang Luo, Sam Van Haute, Bin Zhou, Pat Millner, Shirley A. Micallef, Xiangwu NouABSTRACTWashing in chlorinated water is widely practiced for commercial fresh produce processing. While known as an effective tool for mitigating food safety risks, chlorine washing could also represent an opportunity for spreading microbial contaminations under sub-optimal...
Sat, 11/02/2019 - 03:23
Author(s): Chawalit Kocharunchitt, Lyndal Mellefont, John P. Bowman, Tom RossABSTRACTEnteric pathogens such as Shiga-toxin producing Escherichia coli (STEC) and Salmonella spp. continue to be a major food safety concern for the beef industry. Currently, no single method is completely effective in controlling these pathogens during carcass processing. Previous research, however, suggested that...
Sun, 10/27/2019 - 03:30
Author(s): Yurim Cho, Hoikyung Kim, Larry R. Beuchat, Jee-Hoon RyuAbstractWe investigated combinations of gaseous essential oils (EO gases) for their synergistic inhibitory activities against Listeria monocytogenes on a laboratory medium and radish sprouts. The minimum inhibitory concentrations and minimum lethal concentrations of oregano, thyme thymol, and cinnamon bark EO gases against L....
Sun, 10/27/2019 - 03:30
Author(s): Tingting Li, Xiaojia Sun, Haitao Chen, Binbin He, Yongchao Mei, Dangfeng Wang, Jianrong LiAbstractQuorum sensing (QS), bacterial cell-to-cell communication, is a gene regulatory mechanism that regulates virulence potential and biofilm formation in many pathogens. Aeromonas sobria, a common aquaculture pathogen, was isolated and identified by our laboratory from the deteriorated turbot...
Sun, 10/27/2019 - 03:30
Author(s): Ângela Alves, Rui Magalhães, Teresa R.S. Brandão, Lígia Pimentel, Luis M. Rodríguez-Alcalá, Paula Teixeira, Vânia FerreiraAbstractThe objective of this work was to investigate the effect of stress conditions frequently encountered in food-associated environments on virulence-associated characteristics of eight strains of Listeria monocytogenes. Strains were grown at low (11 ºC, cold...
Thu, 10/24/2019 - 03:29
Author(s): Anna Szczerba-Turek, Jan Siemionek, Piotr Socha, Agata Bancerz-Kisiel, Aleksandra Platt-Samoraj, Karolina Lipczynska-Ilczuk, Wojciech SzwedaABSTRACTShiga toxin-producing Escherichia (E.) coli (STEC) pathogens are responsible for the outbreaks of serious diseases in humans, including haemolytic uraemic syndrome (HUS), bloody diarrhoea (BD) and diarrhoea (D), and they pose a significant...
Wed, 10/23/2019 - 03:31
Author(s): Stanley H. Chen, Narelle Fegan, Chawalit Kocharunchitt, John P. Bowman, Lesley L. DuffyAbstractUnderstanding the bacterial community profile through poultry processing could help the industry to produce better poultry products. In this study, 10 chicken carcasses were randomly sampled from before and after scalding, before and after immersion chilling, and after air chilling each...
Sun, 10/13/2019 - 03:27
Author(s): Helena Taina Diniz-Silva, Larissa Ramalho Brandão, Mércia de Sousa Galvão, Marta Suely Madruga, Janeeyre Ferreira Maciel, Evandro Leite de Souza, Marciane MagnaniAbstractThe effects of the incorporation of the essential oils from Origanum vulgare L. (OVEO; 0.07 μL/g) and Rosmarinus officinalis L. (ROEO; 2.65 μL/g) in combination in Minas Frescal cheese on the counts of the probiotic...
Wed, 10/09/2019 - 03:26
Author(s): Sofia Griselda Cuggino, Isabel Bascón Villegas, Francisco Rincón, Alejandra Pérez Agostini, Guiomar Posada-Izquierdo, Javier Marugán, Cristina Pablos Carro, Fernando Pérez-RodríguezAbstractThis work aimed to study the effect of the combination of Sodium hypochlorite, the most used disinfectant by the vegetable industry, with a natural antimicrobial, benzyl-isothiocyanate (BITC),...
Wed, 10/09/2019 - 03:26
Author(s): Zhibin Liu, Zhiyao Wang, Jinyuan Sun, Li NiAbstractGutian Hong Qu glutinous rice wine (GHQW) is a representative alcoholic beverage in China. During its traditional brewing process, multiple strains are involved. However, the roles of these microorganisms, particularly their contributions to aroma formation, are poorly understood. Therefore, in this study, the dynamics of volatile...
Tue, 10/08/2019 - 03:27
Author(s): Cecilia Lucero Estrada, Gabriela Isabel Favier, María Esther EscuderoAbstractThis study is aimed at offering an overview of the prevalence of Yersinia enterocolitica and related species in San Luis, Argentina, from samples of diverse origin received in our laboratory between 1984 and 2014, and providing an analysis of the distribution of Yersinia isolates according to their isolation...
Tue, 09/24/2019 - 03:25
Author(s): Anas A. Al-Nabulsi, Tareq M. Osaili, Amin N. Olaimat, Weam E. Almasri, Mutamed Ayyash, Murad A. Al-Holy, Ziad W. Jaradat, Reyad S. Obaid, Richard A. HolleyABSTRACTTahini is a popular food product in the Middle East region and is used as a major ingredient in several ready-to-eat food products. Tahini and its products have been linked to foodborne illness outbreaks and product recalls...
Tue, 09/24/2019 - 03:25
Author(s): Xiaoye Shen, Yi-Cheng Su, Chengchu Liu, Tom Oscar, Angelo DePaola
Tue, 09/24/2019 - 03:25
Author(s): Dandan Xu, Peng Wang, Xin Zhang, Jian Zhang, Yong Sun, Lihua Gao, Wenping WangAbstractRed sufu is a traditional food produced by the fermentation of soybean. In this study, sufu samples were periodically collected during the whole fermentation to investigate the dynamic changes of fungal and bacterial communities using high-throughput sequencing technology. The overall process can be...
Tue, 09/24/2019 - 03:25
Author(s): Du Guo, Shuo Wang, Jiahui Li, Fangting Bai, Yanpeng Yang, Yunfeng Xu, Sen Liang, Xiaodong Xia, Xin Wang, Chao ShiAbstractCoenzyme Q0 (CoQ0) has demonstrated antitumor, anti-inflammatory, and anti-angiogenic activities. Cronobacter sakazakii is an opportunistic foodborne pathogen associated with high mortality in neonates. In this study, the antimicrobial activity and possible...
Tue, 09/24/2019 - 03:25
Author(s): Hamada A. Aboubakr, Fernando Sampedro Parra, James Collins, Peter Bruggeman, Sagar M. GoyalAbstractCold atmospheric-gaseous plasma (CAP) is an emerging non-thermal technology for decontamination of foodborne bacterial and viral pathogens. We obtained a >5 log10 reduction in the titer (TCID50) of feline calicivirus (FCV) on stainless steel discs and Romaine lettuce leaves after 3 min...
Tue, 09/17/2019 - 01:03
Available online 16 September 2019 Author(s): Yuan Fang, Lynn M. McMullen, Michael G. GänzleAbstractDrying processes do not eliminate pathogenic Escherichia coli in foods but induce sublethal injury, which may also induce the Shiga toxin (Stx) prophage. This study investigated the effect of drying on membrane lipid oxidation and stx expression in E. coli. Lipid peroxidation was probed with C11-...
Sun, 09/15/2019 - 01:03
Available online 14 September 2019 Author(s): Elpiniki Vandera, Maria Parapouli, Athanasia Kakouri, Anna-Irini Koukkou, Efstathios Hatziloukas, John SamelisABSTRACTThe presence of eight common structural enterocin genes, singly or in varying combinations, in the genome of 15 antagonistic Enterococcus spp. previously isolated from artisan Greek Graviera and Galotyri retail cheeses was tested and...
Sat, 09/14/2019 - 01:03
Available online 12 September 2019 Author(s): Bruna Farias Alves, Solange Maria Gennari, Solange Oliveira, Herbert Sousa Soares, Carlos Adam Conte-Junior, Jitender Prakash Dubey, Marcos Amaku, Hilda Fátima Jesus PenaAbstractThe present study evaluated the viability of Toxoplasma gondii tissue cysts in dry-aged pork loins (m. longissimus) after 14, 21 and 28 days under controlled temperature (0ºC...
Fri, 09/13/2019 - 01:03
Available online 11 September 2019 Author(s): Xiang-Feng Zheng, Zhen-quan Yang, Hui Zhang, Wen-Xi Jin, Cui-Wen Xu, Lu Gao, Sheng-Qi Rao, Xin-an JiaoAbstractPickle is a type of mildly lactic acid fermented vegetable and is a traditional dish favored in China, Japan, and Korea. Corruption of spoilage bacteria and accumulation of nitrite during vegetable fermentation are common problems that affect...

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